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Accessories for Differential Scanning Calorimeters and Thermobalances

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Accessories for Differential Scanning Calorimeters and Thermobalances Analyzing & Testing Accessories for Differential Scanning Calorimeters and Thermobalances Crucibles, Sensors, Sample Carriers, Calibration Kits for DSC, TGA and STA Systems Introduction – Table of Contents Accessories for Thermal Analysis – DSC/DTA, TGA and STA Thermal analysis is a powerful, well and instrument parts must be prevented meshes and baskets are available proven tool for obtaining reliable data while ensuring that the test results to accommodate specific sample on the caloric and thermophysical remain reliable and accurate. For these dimensions and densities. properties of a great variety of materials. reasons, one of our primary areas of focus is crucibles and sensors for DTA/ Lately, the demand for special crucibles To attain proper results, proficient DSC, TGA and STA instruments. has been increasing. Of course, state-of-the-art instruments are measurements can only be carried out required, featuring optimum technical This catalogue provides an overview of when the right sensor or sample carrier attributes such as high sensitivity and all such crucibles and sensors for DTA, for these special crucibles is available. resolution in the required temperature DSC, TGA and STA measurements. We have therefore listed these special range. In recent years, a rise in the You will find many different crucible cases here, often providing application development of new materials for materials listed, and a variety of types examples to demonstrate their emerging applications has been and special shapes. From among these, characteristic advantages. presenting an ongoing challenge for we can help you find the right crucible the thermal analysis industry in keeping size and material for any application, Our accessories can open up a world pace with rapidly evolving market be it standard or special. In addition of possibilities for your thermoana- needs. to standard aluminum crucibles, our lytical needs. It is our hope that this portfolio includes autoclaves with low catalogue will serve to acquaint you At NETZSCH, we always strive to to medium or high pressure-tightness, with these. If you have any questions, be a step ahead. We place as much as well as ones for determining the or if you require something specific importance on the development and oxidative-induction time (OIT) and which you cannot find in the following production of accessories as on that of solid fat index (SFI). We offer crucibles tables, please simply contact us – new instruments. Accessories in contact made of ceramics or metals covering NETZSCH welcomes the challenge of with the sample or in close proximity a wide temperature range. In the working out a solution tailored to your to it require special attention. Potential high-temperature range, special TGA application, and we are always happy reactions between the sample material and DTA crucibles, slip-on plates, to hear from you. 2 Table of Contents Crucibles Sensors and Sample Carriers 38 Selection of Crucibles .............................................................4 DSC 204 F1 Phoenix® Sensors, TG 209 F1 Iris®/Libra® and TG 209 F3 Tarsus® Sample Carriers ................................40 DSC 204 F1 Phoenix®/DSC 200 F3 Maia®/DSC 3500 Sirius/ c-DTA® – More Than an Easy Calibration Routine .................42 DSC 214 Polyma ....................................................................6 DTA and DSC Sensors for the DSC 404 F1/F3 Pegasus® ........44 Standard Crucibles made of Aluminum ..........................7 TGA Sample Carriers and TGA-DTA Sensors for the Crucibles for General and Special Applications ���������������8 STA 449 F1/F3 Jupiter® ........................................................46 Sealing Press, Sample Preparation and TGA-DTA and TGA-DSC Sensors for the Pressure-Tight Crucibles ...............................................10 STA 449 F1/F3 Jupiter® ........................................................48 Crucibles for Automatic Sample Changer (ASC) �����������12 Radiation Shield for STA Systems ..........................................50 Special Crucibles for Special Applications ���������������������16 TGA and TGA-DSC Sensors for C Determination and p Operation with the Automatic Sample Changer (ASC) for the STA 449 F1/F3 Jupiter® .............................................52 TG 209 F1 Libra®/TG 209 F3 Tarsus® ....................................18 Different Sensor Types – The Right Sensor for Each Crucibles for General Applications �������������������������������19 Application ..........................................................................54 Crucibles for Automatic Sample Changer (ASC) �����������20 Tungsten for Highest Temperature Applications ....................56 Applications .................................................................23 Special Sample Carriers for Special Applications – OTS®........58 Hanging Samples .........................................................60 STA F1/F3 Jupiter® and DSC 404 F1/F3 Pegasus® .................24 Crucibles Made of Aluminum .......................................25 Calibration 62 DSC Crucibles for Measurements in a Pressure-Tight Environment ................................................................26 Calibration Materials ........................................................... 64 Large TGA Crucibles and Slip-On Plates ������������������������27 Calibration Kits for DSC and DTA ........................................ 65 Knudsen Cells (TGA); TGA and TGA-DTA Crucibles Calibration Kits for TGA and STA ........................................ 68 Through to the Highest Temperature Range .................28 TGA-DTA, DSC and TGA-DSC Crucibles .......................30 Chemical Behavior of Pt, Al2O3 and Crucibles for Automatic Sample Changer (ASC) �����������32 Graphite Crucibles and Sensors 70 Applications – Special Crucibles for Large Samples, Oxygen-Sensitive Alloys ������������������������������������������������34 Material Compatibility – Sample in Crucible 72 Applications – Special Crucibles for High Temperatures ...............................................................36 Recommendations for Cleaning Al2O3 and Pt Crucibles 74 3 Crucibles Selection of Crucibles Crucibles and Their Selection Crucibles and their lids are made of such as nickel and zirconium have also materials resistant to high temperatures, been used. The type of crucible used usually porcelain or an inert metal. for thermoanalytical measurements Ceramics such as alumina, zirconia, can have a strong influence on the and especially magnesia will tolerate measurement results obtained. the highest temperatures. One of the Additionally, the crucible can also first metals used in crucible production influence the characteristics of the was platinum; more recently, metals instrument’s measuring cell. 4 Important Factors for Selection of Suitable DSC, TGA and STA Crucibles for Your Sample The DSC crucible should have a flat in the programmed temperature bottom and be made of a material range; the melting point or fusion with a high thermal conductivity. This temperature must exceed the guarantees optimum heat transfer maximum application temperature to and low temperature gradients a sufficient degree. between the sample, crucible and sensor. The dimension, shape and specific heat of the crucible should be The crucible should be made of an optimized to achieve and/or maintain inert material in order to prevent the highest caloric sensitivity reactions with the sample in the and lowest time constant for the programmed temperature range. measuring system. Optimized Exceptions are crucibles for which parameters will result in sharp, a catalytic effect on the sample is well-defined and clearly separated desired (e.g., copper crucible for peaks. OIT tests, etc.). Crucibles should be reusable, The crucible should not exhibit any especially special ones for specific phase transitions or other effects applications. Sample Material Crucible Volume Temperature Range Atmosphere CRUCIBLE SELECTION Automatic Sample Changer Sample Compatibility Test Method 5 DSC 204 F1 Phoenix®, DSC 200 F3 Maia®, DSC 3500 Sirius and DSC 214 Polyma Standard Aluminum Crucibles Crucibles for the DSC 204 F1 Phoenix®, DSC 200 F3 Maia®, DSC 3500 Sirius and DSC 214 Polyma The following tables list the crucibles The premium Concavus pans have a for the low-temperature DSC systems unique geometry which features a DSC 204 F1 Phoenix®, DSC 200 F3 concave bottom. The pans are delivered Maia®, DSC 3500 Sirius and DSC 214 in the antistatic 3in1 Box. This elaborate Polyma. Many of these crucibles can packing prevents deformation of the also be used for the high-temperature pans, while allowing easy access of DSC and STA systems and can be found them and providing a fully functional in those tables as well. archiving system. Please note that the temperatures For special applications such as boiling listed indicate the maximum point determination for volatile temperature ranges of the crucible substances or gypsum investigations, Al material but not of the DSC systems. lids with a laser-cut hole (50 μm) can be used. The lids can be cold-welded to the Some of the crucibles made of standard Al crucible. aluminum can be cold-welded with a sealing press. The standard Al crucibles Our high-pressure crucibles are capable and lids can be sealed to obtain a of withstanding a maximum of 100 bar volume of either 40 μl or 25 μl by of internal pressure. A single sealing simply reversing the lid. This ensures tool handles the job identically for all that samples of various shapes,
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